Journals →  Gornyi Zhurnal →  2017 →  #7 →  Back

DEVELOPMENT OF DEPOSITS
ArticleName Influence of primers on blasting efficiency and safety
DOI 10.17580/gzh.2017.07.12
ArticleAuthor Belin V. A., Gorbonos M. G., Astakhov E. O.
ArticleAuthorData

College of Mining, National University of Science and Technology – MISIS, Moscow, Russia:

V. A. Belin, Professor, Doctor of Engineering Sciences, bvamggu@mail.ru
M. G. Gorbonos, Professor, Doctor of Engineering Sciences

 

NOIV (National Organization of Blasting Engineers), Moscow, Russia:
E. O. Astakhov, Deputy Director of Special Programs

Abstract

The discussion is devoted to large-scale production blasting. Currently ecological safety is a priority the sound industrial development, and a modern blasting technology should provide for the reduction in the aggravating effect exerted by an explosion to the mine infrastructure, adjacent residential area and various production and public objects. Aimed to abate seismic effect of blasting, the currently available primers can change delays set between groups of charges and between separate charges within wide ranges. The undertaken research shows that modern primers with pyrotechnic delayers have an essential shortcoming represented by the bias between the rated and actual firing times. As a consequence, the quality of an explosion worsens, and the explosion performance deviates from the design parameters. Moreover, seismic eff ect even deteriorates as blasts of two or more charges overlap. It is found that manufacturers of primers have greatly achieved in terms of production of detonators with electronic delay, which appreciably enhance safety of blasting. The article reports data of experimental studies into delay intervals using the modern primers under various ground conditions.

keywords Explosives, primers, detonator, production blast, delay interval, electronic delay, ecological safety
References

1. Kutuzov B. N., Belin V. A. Design and organization of blastings. Moscow : MGGU, 2011. 410 p.
2. Bogatskiy V. F., Pergament V. Kh. Seismic safety during blastings. Moscow : Nedra, 1978. 128 p.
3. Tseytlin Ya. I., Smoliy N. I. Seismic wave and air vibration of industrial blasts. Moscow : Nedra, 1981. 192 p.
4. Blasts and earthquakes on the European part of Russia. Ed.: V. V. Adushkin and A. A. Malovichko. Moscow : GEOS, 2013. 384 p.
5. Kovalenko I. L., Kuprin V. P. Interacting of emulsive explosives and their components with sulfidic minerals. Vzryvnoe delo. 2010. No. 103/60. pp. 154–170.
6. Murphy J. R., Bennett T. J. A discrimination analysis of short-period regional seismic data recorded at Tonto Forest Observatory. Bulletin of the Seismological Society of America. 1982. Vol. 72. pp. 1351– 1366.
7. Su F. Discrimination quarry blasts from earthquakes using coda waves. Bulletin of the Seismological Society of America. 1991. Vol. 81. pp. 162–178.
8. Sivenkov V. I., Ilyakhin S. V., Maslov I. Yu. Emulsion explosives and non-electric initiation systems. Moscow : Shchit-M, 2013. 320 p.
9. Tunneling in Rock by Drilling and Blasting. Ed. by Spathis A., Gupta R. N. CRC Press, Taylor & Francis Group, 2013. 132 p.
10. Jonson D. Controlled shock waves and vibrations during large and intensive blasting operations under Stockholm city. Workshop on Tunneling by Drilling and Blasting hosted by the 10th Int. Symposium On Fragmentation due to Blasting (Fragblast 10), New Delhi, India, 24–25 November, 2012. pp. 49–58.
11. Shchukin Yu. G., Lyutikov G. G., Pozdnyakov Z. G. Means of initiation of industrial explosives : tutorial for colleges. Moscow : Nedra, 1996. 155 p.
12. Etkin M. B., Azarkovich A. E. Blastings in energetic and industrial construction. Moscow : Izdatelstvo MGGU, 2004. 317 p.
13. Gupta I. D., Trapathy G. R. Comparison of construction and mining blast with specific reference to structural safety. Indian Mining and Engineering Journal. 2013. Vol. 54, No. 4. pp. 13–17.
14. Monalas F. I., Arusu T. Blasting works in urban area A Singapore case study. Workshop on Tunneling by Drilling and Blasting hosted by the 10th International Symposium On Fragmentation due to Blasting (Fragblast 10), New Delhi, India, 24–25 November, 2012. pp. 23–30.
15. Nikulova V. G., Timonina T. V. Electrical detonator with the prefixed parameters and the high level of safety. Vzryvnoe delo. 2010. No. 103/60. pp. 241–255.
16. Kutuzov B. N., Sovmen V. K., Ekvist B. V., Vartanov V. G. Safety of seismic and air impact of mass explosions : tutorial for universities. Moscow : MGGU, 2004. 181 p.
17. Martynov V. G., Komashchenko V. I., Belin V. A., Ismailov T. T. Blasting technology. Moscow : Student, 2011. 439 p.
18. Marshall P. D., Basham P. W. Discrimination between earthquakes and underground explosions employing an improved Ms scale. Geophys. J. R. Astr. Soc. 1972. No. 29. pp. 431–458.
19. Malovichko D. A., Sabirov R. H., Akhmetov B. Sh. Ten years of seismic monitoring in mines of the Verknekamskoye Potash Deposit. Controling Seismic Risk. Sixth International Symposium on Rockbursts and seismisity in mines proceedings. 2005. pp. 367–372.

Language of full-text russian
Full content Buy
Back